Flukso flm02 clamps directional?

I have a flm02 with no clamps. I was going to hook it up with a pulse meter but was thinking of using a clamp if it was directional as my solar is connected on a sub board and will have to be metered as net.
Can I get them anywhere?

Also anyone know what voltage the flm02 assumes it is for the clamped cable?
My voltage runs around the 253v most of the solar day and drops down to 246 ish with no solar.